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22.
MO
MO - Multiple Orgasm.

To have many orgasms, one after the other in short succession.
I MO'd so hard that I soaked the sheets last night.
by Fairchildjune August 04, 2013
 
23.
Mo
Missouri.
Im From the Mo. ya know?
by CnClear January 27, 2011
 
24.
mo
short for moron
Tell your boyfriend to stop being such a mo
by liljojo June 09, 2010
 
25.
MO
Morbidly Obese

If you are 100 lbs over your ideal body weight. Have a Body Mass Index (BMI) of over 40. Or in other words are "rather large!"
They really shouldn't have "all you can eat" places! Too much of a MO hangout.
by TheCraw2 September 21, 2009
 
26.
Mo
An exclamation to express you amazement at something that is good.
Ice cream is ready.
Response: mo!

You just won a million dollars.
Response: mo!
by gerrypez July 14, 2009
 
27.
Mo
A special kind of guy who embodies awesomeness but can sometimes be a tough cookie. looks meh with glasses on but is confident enough to not give a fuck. Loves Manchester United. If he could marry it he would (no homo). Uber social with more friends than he can count. The only Egyptian guy I've ever come across who's a revolution pussy. Aims derogatory terms to ones he's sexually attracted to. Shows affection by calling them bitches which even if you tell him it annoys the shit out of you, to him it just goes unregistered. On rare occasions he'll say something sweet and when he does, he will surely melt your heart! But it's always short-lived. The most innocent little bunny ever! And the best online friend a girl can ever ask for.
Friend 1: omg who is that hottie over there? I like his swag!

Friend 2: oh ya that's just Mo my hommie :)

Friend 1: give me a piece of that ass.

Friend 2: be careful with him or you'll get burned. He's highly flammable.
by VideoVixen January 27, 2013
 
28.
Mo
When used in north eastern New Jersey/New York "Mo" generally stands for "Moron".
"My dad is such a mo. He got arrested for assaulting an officer again."
by LK865 November 18, 2011